Dental appliance



July 29, 1924.

Cs. E. PERRY DENTAL APPLIANCE Filed Feb. 26. 1921 Patented .lilly Z9, 1924.

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GEORGE ELLIOT' PERRY, OF CHICAGO, ILLINOIS.

DENTAL APPLIANCE.

Application filed February 26, 1921. Serial No. L148,222.

T all whom t may concern.'

Be it known` that I, GEORGE ELLIOT PERRY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Dental Appliances, of which the following is a specification.

The invention relates to improvements in devices for cleaning the teeth and consists of f' an especially prepared stick for this purpose which I call a dental stick.

One of the objects ofA the invention is to provide an improved means and device for cleaning the teeth.V i5 Another object of the invention is to provide a means for removing the undesirable deposits or eXcrescence from the teeth without irritating the gums.

In carrying my invention into effect I Til procure small sticks of rattan or other similar porous wood or substance, about as long as the ordinaryY friction match and somewhat larger in diameter, and after thoroughly sterilizing them I fill their pores and slightly cover their surfaces with a dentifrice having in its incorporation a suitable abrasive and detergent and any other desired ingredient useful for the purpose and g nerally contained in so called f' tooth powder or paste. v

' The wooden stick best adapted has longitudinally extending` minute holes or pores,y

the holes about or nearly equaling the solid conte-nt ofthe cross sectional area. Rattan,

-"f some species of palm and many other woods of similar nature may advantageously be used.

In the drawings preparedand enclosed in a sealed, sterilized 41') envelope or jacket.

F ig. 2 is an elevation of the stick. .y

Fig. 3 is a greatly enlarged view of a fragment of the prepared stick showing part in section. I

In all the views the same reference characters are employed to indicate similar parts.

After the sticks have been made of uniform size and ysterilized the pores of the sticks are filled with the dentifrice.

A convenient manner of filling and coating the sticks consists in placing a large number of them in a tumbling barrel with the dentifrice in powdered form and then ro- Fig. l shows the stick as tating the barrel. contents of the barrel will cause' the exceed- The agitation of theV ingly fine powder to enter and fill the pores Y of the wood for some distance from the ends, as shown at 5 in Figs. 2' and 3. The pores 6 arev impregnated. for some distances from the ends with the powder 7 and the stick is supericially covered with it. The

powder can be made to be adhesive so itk To use the stick7 either end is rubbed over the inside and outside surface of the teeth. The used end of the stick soon forms into a rather stiff, brush-like cleanser which may be cut off from time to time. The stick will contain suiiicient powder to last so long as thestick remains serviceable. It is a convenientA manner of having the powder always available without the neces-` sity for carrying a separate package of powder. Y n l Having described my invention what I claimas new and desire to secure by Letters Patent, is :-k Y 1 l. An'article of manufacture comprising a porous stick with the natural pores therej of'iilled with a powdered dentifrice, and a sanitary jacket enclosing and hermetically sealing the stick. 2. An article of manufacture comprising a stick of porous material in which the pores are uniformly distributed having its pores impregnated with an abrasive powder.

3. An article of manufacture comprising a sterilized stick of uniformly distributed porous material having its pores impreg# nated with an abrasive powder, and a sanitary jacket enclosing and hermetically sealing the stick.

4. An article of manufacture comprising a stick having normally open natural pores extending longitudinally thereof and a powdered dentifrice within the pores.

In testimony whereof I hereunto subscribe my name.

' GEORGE ELLIOT PE'RR'Y.

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